Process for the melting and directional solidification of metals
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United States of America Patent
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May 7, 1991
Issued Date -
N/A
app pub date -
May 1, 1990
filing date -
Sep 10, 1985
priority date (Note) -
Expired
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Abstract
A process for the production of columnlarly solidified metallic bodies by melting metal and then solidifying said metal in a crucible, wherein the dissipation of heat is greater at the upper or lower end of the crucible than at the sides, which comprises supplying heat to the verticals sides through a heating element having a plurality of individually controlled heating sections in such a quantity that a melt of the metal is formed and then establishing directional solidification by establishing a temperature gradient by varying the heat output among the heating sections of the heating element by switching.
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